In lipids, there is a 2:1 ratio of H to O.
a. true
b. false
b. false
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What enables the splicing of group I and II introns?
A. Spliceosomes B. Ribozymes C. snRNA D. Poly-A tail
Which of the following could explain how 14 genes for globins, each specialized in their function (i.e., hemoglobin, myoglobin), arose in the genome?
A. misaligned crossover B. gene deletion C. gene mutation D. misaligned crossover and gene mutation E. misaligned crossover and gene deletion
__________ selection is the type of natural selection that acts on characteristics that determine reproductive success.
a) Reproductive b) Sexual c) Endocrine d) Reducing e) Hormonal
Which of the following is NOT a characteristic of spirochetes?
A) possess an axial filament B) gram-negative C) helical shape D) easily observed with brightfield microscopy E) found in the human oral cavity